Patents
Sitemap › C07 - Organic chemistry › C07D - Heterocyclic compounds › C07D 501 - Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula: , e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
Patents for C07D 501 - Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula: , e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring (7,574)
10/1990
10/23/1990US4965355 From 7-amino-3-halomethyl-3-cephem-4-carboxylic acid and d(-)-p-hydroxyphenylglycidyl chloride.hcl
10/17/1990EP0392796A2 Cephalosporin derivatives
10/17/1990EP0392745A2 Immunoconjugates and prodrugs and their use in association for drug delivery
10/17/1990CN1046168A Method for predicting biological activity of antibiotics, and novel beta-lactam antibacterial agents derived therefrom
10/16/1990US4963542 Cephalosporin derivatives
10/16/1990CA1275285C Cephalosporins and processes for their preparation
10/11/1990DE3911321A1 Process for the preparation of cefazolin sodium salt
10/10/1990EP0391393A2 Process for the preparation of disodiumsalt of cefodizim
10/09/1990US4962195 Solvate of cefadroxyl
10/09/1990US4962100 3-amidazolium-1-yl-methyl,7-(2-(5-amino-1,2,4-thiadiazol-3-yl) 2-alkoxyiminoacetamido) derivatives; active against cephalosporin-resistant bacteria
10/07/1990CA2014068A1 Process for the preparation of cefodizime sodium
10/06/1990WO1990011782A2 Immunoconjugates and prodrugs and their use in association for drug delivery
10/06/1990CA2030564A1 Immunoconjugates and prodrugs and their use in association for drug delivery
10/03/1990EP0390099A2 Polar cephalosporin derivatives and process for their preparation
10/03/1990EP0390066A2 Cephalosporinderivatives and process for their preparation
10/02/1990US4960889 Cephalosporin intermediates
10/02/1990US4960766 Substituted 2-pyrazoliomethyl group and a 7-(aminothiazolyl) (alkoxyimino)-acetamido group cephalosporin derivatives
10/02/1990CA1274821A1 .beta.-LACTAM ANTIBIOTICS, PROCESS FOR THEIR PREPARATION AND THEIR USE AS MEDICAMENTS OR GROWTH-PROMOTERS IN LIVESTOCK REARING OR AS ANTIOXIDANTS
09/1990
09/30/1990CA2013391A1 Compounds
09/26/1990EP0389176A2 Beta-lactams and processes for their preparation
09/26/1990EP0389064A2 Process for the preparation of 3-exomethylenecepham sulfoxide derivatives and intermediates therefor
09/26/1990EP0388510A1 Pharmaceutical compositions and their use in the prophylaxis or the treatment of bacterial infectious diseases
09/26/1990CN1009732B Process for the manufacture of cephalosporin derivatives
09/25/1990US4959469 Crystalline cephalosporin compounds
09/19/1990EP0387448A2 Photochemical conversion of cephalosporins, 1-carba(dethia)cephalosporins and 1-oxa(1-dethia)cephalosporins
09/18/1990US4958018 Reacting a 3-halomethyl-3-cephem with a lead reducing agent
09/18/1990US4957912 7 acylamidocarbacephem antibacterial agents
09/18/1990CA2012372A1 Compounds
09/18/1990CA1274237A1 O-substituted oximino cephalosporins
09/15/1990CA2005166A1 Photochemical conversion of cephalosporins 1-carba(1-dethia)cephalosporins and 1-oxa(1-dethia)cephalosporins
09/12/1990EP0386689A1 New cephem compound and a process for preparation thereof
09/12/1990EP0386668A2 Lyophilized dihydrochloride of 7-[alpha-(2-aminothiazol-4-yl)-alpha-(Z)-methoxyiminoacetamido)-3-[(1-methyl-1-pyrrolidinium)-methyl]-3-cephem-4-carboxylate
09/12/1990EP0385999A1 Application of 4- 1-oxoalkyl]-2,5-oxazolidinediones in selective stereospecific formation of biologically active beta-lactams.
09/11/1990US4956474 Phthalimidooxy or aminoxy compounds for making cephalosporins
09/11/1990US4956358 Tricyclic cepham compounds and use
09/08/1990CA2011695A1 Cephem compound and a process for preparation thereof
09/04/1990US4954624 Process for the production of cephalosporin derivatives
09/04/1990CA1273630A1 Deprotection of allylic esters and ethers
09/04/1990CA1273629A1 7-amino-3-propenylcephalosporanic acid and esters thereof
08/1990
08/29/1990EP0384732A2 Deblocking process for allyl esters with regeneratable polymer supported pd (0)
08/28/1990US4952578 Cephem compound and a process for preparation thereof
08/23/1990CA2010659A1 Deblocking process for allyl esters with regeneratable polymer supported pd (0)
08/21/1990US4950753 Cyclization of 3-methyl-2-(4-chlorosulfinyl-2-oxo-3-acrylamino-1-azetidinyl)-3-butewnoic ester
08/21/1990US4950661 Cephalosporin derivatives, and their application as antibiotics
08/21/1990US4950660 Intermediates for b-lactam antibiotics
08/21/1990US4950484 Amphoteric beta-lactam antibiotic and cellulose disintegrants
08/16/1990EP0382411A2 Delivery of cytotoxic agents
08/16/1990EP0382268A1 New amino carboxylic acid derivatives
08/16/1990EP0381915A1 Process for preparing alkali metal salts of 3,7-substituted 7-aminocephalosporanic acid derivatives.
08/14/1990CA1272715A1 Antibiotic derivative and purification process
08/14/1990CA1272714A1 Cephalosporin compounds and the production thereof
08/14/1990CA1272713A2 Carboxyalkenamidocephalosporins
08/09/1990WO1990008764A1 Asymmetrical ureas, method for the preparation and utilization of the same
08/07/1990US4946837 Antibiotics
08/02/1990CA2009071A1 Delivery of cytotoxic agents
08/01/1990EP0379708A1 Fungi strain Tolypocladiam varium and process for obtaining complexes of antibiotic cyclosporin and/or its components
08/01/1990CN1044280A Cephalosporins derivatives and process for preparing them
07/1990
07/31/1990US4945159 Penicillin, cephalosporins
07/31/1990CA1272188A1 Cephalosporin derivatives
07/25/1990EP0379132A2 Cephalosporin derivatives and process for their preparation
07/24/1990US4943632 Ceftazidime dihydrochloride formic acid solvates
07/24/1990US4943631 Process for cephem compounds
07/24/1990US4943568 Cephalosporins
07/24/1990US4943567 Effective against pseudomonas
07/19/1990CA2008059A1 Cephalosporin derivatives and processes for their preparation
07/18/1990EP0377987A2 Acylation process for obtaining cephalosporin derivatives
07/18/1990EP0377958A2 Process for the preparation of 3-chloro-cefem compounds
07/17/1990US4942159 Antibiotics, bactericides
07/17/1990CA1271741A1 Cephem derivatives
07/12/1990WO1990007111A3 Method for predicting biological activity of antibiotics, and novel non beta-lactam antibacterial agents derived therefrom
07/11/1990CN1043717A Cephalosporin compounds
07/11/1990CN1008738B Process for preparation of cephalosporin derivatives
07/10/1990US4940702 Cephem compounds
07/04/1990EP0376724A2 Cephalosporin compounds
07/03/1990US4939250 Process for preparation of β-lactam derivatives
07/03/1990US4939249 Process for 1-carba(dethia) cephalosporins
06/1990
06/29/1990CA2005787A1 Cephalosporin compounds
06/28/1990WO1990007111A2 Method for predicting biological activity of antibiotics, and novel non beta-lactam antibacterial agents derived therefrom
06/27/1990CA2006341A1 Acylation process
06/26/1990US4937332 Cephalosporin derivatives
06/26/1990US4937330 Conversion of cephalosporin hydrohalide salt to alkali metal salt
06/20/1990EP0373216A1 Cephalosporin compounds or their salts, process for their preparation, and parmaceutical compositions
06/19/1990US4935508 Acylation of 7-aminocephalosporin with alkyl 2-(2-amino-thiazol-4-yl)-2-oximinoacetate
06/19/1990US4935507 Crystalline 7-(2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetamido)-3-vinyl-3-cephem-4-carboxylic acid (syn isomer)
06/14/1990CA2005545A1 Method for predicting biological activity of antibiotics
06/12/1990US4933443 Method for preparing crystalline hydrate of oral celphalosporin and its composition
06/05/1990US4931555 Disulfide substituted oxazetidine derivatives
05/1990
05/29/1990US4929612 Antibiotics, bactericides
05/29/1990CA1269655A1 Alkeneamidocephalosporin esters
05/22/1990US4927922 7β-(substituted)amino-3-substituted cephalosporanic acids and esters
05/22/1990US4927818 Cephem compounds and processes for preparation thereof
05/16/1990CN1042153A 3-aryloxymethyl-cephalosporin derivatives, their preparation and their medical use
05/15/1990US4925948 Cephalosporin antibiotic chemical intermediates
05/08/1990US4923998 Antibiotics
05/08/1990CA1268759A1 Copper-mediated oximation reaction
05/03/1990WO1990004595A1 Novel antimicrobial fluoroquinolonyl cephems
05/03/1990WO1990004591A1 Novel antimicrobial dithiocarbamoyl quinolones
05/02/1990EP0366643A2 Novel antimicrobial dithiocarbamoyl quinolones
05/02/1990EP0366640A2 Novel antimicrobial fluoroquinolonyl cephems
05/02/1990EP0366193A2 Novel antimicrobial quinolonyl lactams
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